Pursonic S300 Deluxe Plus Rechargeable Rotary Toothbrush includes 12 brush heads It effectively removes plaque without irritating gums and reaches deep between teeth to remove plaque from hard-to-reach places. It removes even tough stains leaving naturally whiter teeth. It"s gentle on teeth and gums The 3400 cycle per minute rotary speed oscillates 60 degrees. Run time is approximatly 25 minutes after fully charged The chargeing unit has a storage cabinet for 3 brush heads .